package com.atguigu.netty.heartbeat;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.handler.timeout.IdleStateEvent;

public class MyServerHandler extends ChannelInboundHandlerAdapter {

    @Override
    public void userEventTriggered(ChannelHandlerContext ctx, Object evt) throws Exception {

        if (evt instanceof IdleStateEvent) {
            // 将evt下线转型为IdleStateEvent
            IdleStateEvent event = (IdleStateEvent) evt;

            String eventType = "";
            switch (event.state()) {
                case READER_IDLE:
                    eventType = "读空闲";
                    break;
                case WRITER_IDLE:
                    eventType = "写空闲";
                    break;
                case ALL_IDLE:
                    eventType = "读写空闲";
                    break;
            }

            System.out.println(ctx.channel().remoteAddress() + "------超时事件----" + eventType);

            // 如果发生空闲，关闭通道
            ctx.close();
        }
    }
}
